Combined detonator and fuse body for percussion or other fuses



April 23, 1,929. L. E. REMONDY COMBINED DETONATOR AWD FUSE BODY FORPERCUSSION OR OTHER FUSES Filed Feb. 5, 1927 2A a`///v l i* i* PatentedYApr.' 23, 1929.

"EVS

. Application filed February 5, 1927, Serial f It Yi'sfknoivn thatprojectile fuses and n more particularly percussion fuses comprise altiring mechanism b'yimeans of which a pery `cussion cap is ired whenthe operation of f5, the Jfuse' takes place. The flash' from thispercussion cap ismade' to send-off the eX- plosive charge oftheprojectile only through adetonating relay. This relay is more geni 1oinner end of whichv is lodged a detonating primer. `The detonatorarrangement (gaine i, and primer)thus.formed, lconstitutes a Aseparateelement whichfis adapted upon the fuse l body 4by screwing; or any other4suitable means. l

The present inventionhas for its subject a fuse body and detonatorcombined in such a way ,that the detonator, or more exactly theflod'gedjforins in its entirety or in part an internal 'lining for theVfuse body, which Vlining, by means of one or more splayed or expandedportions, is hooked on corresponding shoulders on the enclosing body,'one of 25 these expanded portions at least being hooked orseatedVdirectly upon the part of the fuse body which itself is seatedv on thel ,.projectile.' In practice, .a detonator socket according to theinvention will be con*- structed'soias vto* provide, in its upper part,a

4lod'gment for a removable delay holder. ijInthe casewhcn this combinedfuse body f sensitivefusewhich operates instantanevwously and beforeanycrushing of the fuse body takesplace, this fuse body may be made vof arelatively weakV material such as alumini'um or an aluminium alloy, aplastic materi'al,` eta-the vliningsl'eeve .which carries the detonatoralone being made of a strong Y material such assteel or steelcased withcopper for example. 'In this case, more particularly, the arrangementformed by the fuse and the detonator could be constructed Vvmuch moreeasily and more economically than heretofore, an 'economy being effectedvboth in. material Yand in machining and .mountinoV y l Various'examplesof construction of the ini vention are shown in the accompanyingdrawing, in which:- -f A 1 Figure l is a longitudinal sectionalelevacording to the invention, constructed with a View to the use 1nVcombination with super sensitivey percussion fuse operating by dr1v.erall formed b f asocket or gaine at the .l

socket in which the detonator charge is` i' K. fanddetonator is employedwith a superg tion ot a general arrangement of a fuse ac LON EMILEnMoNDY, or raars, FRANCE.

`j" "COMINED nnreunroa AND rUs'nBonYron rianeirssronon oriana rusas.

No. 166,236, and in France April 23, 1926.

ing in and inertia and in conformity to the I Fig. 3 illustrates anothermanner of sef.

curing the socket member in the fuse.

Fig. l is a longitudinalsection'of another form of fuse embodying theinvention.

ln this figure, A'is a fuse body proper formed for example bycasting,from a material such as aluminium, B is a detonator socket or gaine,that is to say a socket at the bottom of which is lodged and held adetonating 4primer C. The detonating charge C may, in the known manner,be contained in a capsule@1 `(as shown in Fig. l) closed by a AdiaphragmC?, the arrangen'ient C-C2` `keeping the primer perfectly Afluid tight;any displacement of the said capsule is prevented by indentingvthesocket with a punch as at b. As seen from the modification shown inFigure 2, the detonatingcomposition C may be lodged directlyI at thebottom of the socket B, and retained by'a perforated piece C3 made of alight metal, forminga wad and retained by suitable. crimping.

Vits shown in the drawing the gaine or socket' B forms in part aninternal lining for the fuse body A. This gaine may be made of a strongrmaterial such as steel or steel cased with copper.

The body A and the socket B are so shaped that the latter is hooked bymeans `of one or more expanded portions B1, B2 upon correspondingshoulders a, al on the enclosing fuse body A. One of these expandedportions 0, at least is seated directly upon the partei' the luse bodywhich isyitselt seated at a2, uponr the projectile D. The socket B whichlines the fuse body internally, may be held in 'place by an lindependentpart 'A1 of the fuse body which part isV screwed on A. and serveslodgment or'the mechanism E. The lining socket B may, as shown in Figurel, serve as lodgment, by means of its front part, for a removable delaydevice F which will. bear upon the lower expanded portion B2 and mayitself be held in place by av hollow conical and slightly elastic memberGr gripped by its front base between the securing shoulder B] of thesocket and the part A1 of the fuse body vcontaining themechanism. f f

The elasticity may be obtained yby means o3t a series of slots G1formingY at the sametime duets allowing the gases to pass to-1 soA Wardsthe delay holder and the gases coming fromthe latter to pass. The memberGr .may as shown in the drawing, be .att-ached ,onto the rpart A of thefuse body-[for instance by setting.v

As ywill seenthe inventionk not ,only makes-it lpossible to obtain aneconomical construction from the point of VvieWxof/:raw materialemployed or/ the arrangement'V formed by the mainpartAof the fuse bodyandthe socketB, the latter only needing-.tol

be made of a strong material fin order to prevent any fracture dueto theeffect of' `inertia when the shot' isired; lb'utfin addition, onaccountof the-simple andy direct sleeve fit betweenY the detonatorcarrying socket and the fuse body,VV all 'machining :for

' 'xing thezdetonator inplace isavoided. i

Figure 3 shows, in` sectional elevation, a constructional example ofthecombined fuse body and detonator which vthe nipper splayed part ofslioulder'Bl, of the socket; l. is embedded, during manufacture, inthesofter material of thev fuse body y AIt goes Without vsaying .that itis possible,

' instead of embeddingrtlie shoulder rB1` in the softerv material, 't0embed the Whole of the frontV part therein :the Hash transmitting ductbeing formedv'in the fuse body YA. 'Ihev lower projecting part ofthesocket, receiv- K'ing .the detbna-ting'primer C may, as shown in Figurev3, comprlse'a'L chamber forming;

a lodgment forthe' detonating primer C Which'Will 'beheld .in place,Vfor example, by#

means of a tube C3, Vforming .a Wad, between anfelastic bearing WasherC*4made of felt or other Vsuitable material-anda setting b2, formed at thebottom part of the socket.` In' this case the socket carrying thedetonating primer may. be formed directlyY by aframe lodged in the fusebody of weaker material in accordance 'With the invention formingV-'thesubjectfof the U. S. PatentNo. 1,540,283.

fNaturally, the outlines, internal -andrrex'-y ternal, of the gaine orsocketB which contains the detonating primer, may be'varied asdesired-to s'u-itthe mode of construction oi" the elements ofthe.fuse,'according Tasto Whether the said fuse isintended to be lemployedWith a removable or axed'delay device or in A.combination:withmechanisms other :than theone shtml-n Vway ofy examplefin@theV drawing.f

In the modification shown, in; sectional I elevatlon in v,Figure ,zthegaineB instead ofjbe'ing,'as shown in Figure l', securedQinY placeby apartQAl' of theuse .bodysorewed K v `upon part'llfisf held in placeby asocket ittedninto A andi-secured guponthefuse Y 1 bodybya pinfH ,whichitself'serves for securing inv place the"V carriage E Vcontaining.VVthehring mechanism." e.

Further in' this modification thel narrowed lportion?which, "in thelex-ample".l .Q5

shown in Figure-1, rwas `formed by themember G, is formedv by"` ,the`body 'fof the 'gaine B which is pressed'in-atter the 4primer C hasj beenintroduced.;

"I claimip. I l.

1. In a fuse, a body having abore thaw' in and a shouldexwifnV4 saidbore, 'a socketV member supported onsaid shoulder vand lin! mg saidbore, detonatmg means saidl socket member, ak Shoulder insaid socketVmember, adelayv mechanism having a .t1 on engaging-said, last named`shou means operatively engagingsaid shoulder-'in said *borel kand saiddelay mechanism Wheresaid socket member between saidfshonlders.

dee-all.

by Vsaid' delaymechan-ism l'i-sjsupportedfin'k i QJIn'a'use, a Ibodyhavingfabore' there- Vin and -a shoulderninsaidborg--afsocket` y membersupported fromv said shoulder,det#V A A onat-i-ng -fmeansyin fsa'id lsoe'laet member, a

Vshoulder in :said-socket member, delay mech-V anism resting againstrsaid-fleet` named shoulder, and resilient means-interposed benamedshoulder.

tween said delayf-mechan1smland saidY first iff" i Ine-testimonyWhereofl khave, signed Ythiay specification.

'L'ON EMILE ,RMoim1f.'Y i Y

